#1: Angle and lighting. I would even out the length below the flower with the length above the flower (centering it). The picture is dark, which taking this picture while the sun is out might have added to the lighting and colors.
#2: In my opinion, this picture is perfect. If I was to...
The background is too distracting from the bird. Getting closer to it and having it as the picture's primary focus (having it take up more of the overall scene) would be better. Maybe being to the bird's side would have been good, too, depending what you were going for. The bug in it's beak...
Another thing to add is try doing this in the beginning of winter, when the chickens are still scared of the snow. If you've got someone helping you, you can have the chicken's landing spot (the coop fir example) ready before you even take the picture. You can even take several pictures this...
At quick glance, I like #1 and #3 the best, but #1 could have a better point of focus and maybe not the hen on the left seeing that wasn't the picture's point. Pictures #2 and #4 are good, though #4 would be the best out of those two, seeing the dandelion looks complete. Going down some on #4 to...
Do you have the 70-300mm lens? That's what I use on one of my cameras. When I'm planning on taking a lot of pictures of my chickens, I use two cameras at once. One camera has the 18-55mm lens and the other has the 70-300mm. That way, if I have chickens close to me, I can take pictures of them-...
What are you dealing with?
Can't get close enough? Solution: Get a bigger lens so you can be further away.
They're constantly moving? Solution: Use a higher stutter speed or use Sports mode.
Can't get them to stay in a spot with your wanted background? Solution: Treats. Many advise against...
Ok. Do you have a link to that?
Oh. It's meant for electronics. It's what everywhere was suggesting. On the fluid, I try not to let it get too low and I test it before spraying it in my camera.
I clean both now. I use canned air to blow the dust off the sensors. When I'm done, there's a dust spot remover setting that I'll reset. If any is left after that, I repeat the process until it's done. How do you clean your sensors? For when you're in a storm, maybe you could put a clear filter...
What about the dust spots themselves? I have these beautiful pictures (in my opinion) of this sunset at a place I've only been to once, so a once in a lifetime shot, but they were all ruined because of dust spots. After that, I bought a new camera.
About a year after that, I discovered a way to...
I think Crop #1 is best. It's in a good position (I'm thinking rule of thirds?). Crop #2 is more of a widescreen picture, which is good on some screen formats.
I'd like the first one better if the Robin's face was more flat and not so dark. The soft background looks great. In the second one, the background almost camouflages the bird.